What is it?

We purchased some hot pepper plant seedlings a few weeks ago, and one of them seems to have another plant with it. Anyone know what the flowering plant is??? Its growing faster than the peppers, and if its something that's gonna take over, I'd like to get rid of it soon - but for now, its nice to look at!

http://images17.fotki.com/v309/photos/4/40102/3422402/IMG_4242-vi.jpg

thanks.